Cylinder grinder



l. E, POWELL,

CYLINDER GRINDER.

'APPLICATION FILED III/III. 2l. m22.

Patented 96e. :23, M22.

FTS-SHEET l.

E. IIR. PAIA-DI.. f... ...I

E. FGW/ELL, CYLAINDER GRNDER.

APPLICATION' FILED MAR. 21. 1922.

Patented De@ 5, 1922.

3 SHEEfS-SHEET 2.

noem/toi I. E. POWELL. CYLINDER GRINDER. APPLICATION AFILED MAR. ZI, ISZZ.

3 SHEETS-SHEET 3.

3 mw MASC/L y www@ lliatentecl Dec. 5, 1922.

, `JAMES EDWARD POWELL, oF LITTLETON, COLORADO.

`v l nppiication ala Marga 2,1,

To (1.7!, wlmi/r. it fning/ Concern.

Beit known that JAMss EDWARD PoWi-iLL, citizen of "the United States, residing at Littleton, in. the county, of Arapahoe and State yof ,(vlolorado,` has vinvented certain new and usefulfImprovements in Cylinder Grinders-.inf whichtlie following: is a. specification,

Y., reference v:being ,panyii'ig drawings,

i io

y ini: pivotall. ,lower ends to )lates carried b y disposed l.Shaft andiare normally inhsgfAlso to provide` the ends`Y ot the stone arijyinginembrs with arms :and has for it grinder., m ....cntially 1arranged and vertically disposed wardly by;

had, ,therein to the accoin` rlhe lin vention relates to'c-yliilidei' grinders, ohjectcto, pr'yide a cylinder ,ilflgf',y a plurality of 'circumferstone carrying. .members adapted to receive strips ofn abrasive fiiiaterial, preferably carborundmm saidstone l.carrying members be-y onnected at their upper and a vertically forced out! having .linkgconne 'tions withdise'sl carried GRINiiER.

1922. seriai 1ro/545,557?

-upper and lower end terminates in-hori- .zontally disposed discs 2i and 4. The disc 3 is providedA with radially disposed spaced I recesses 5, and threaded on the .outside of the disc 3 is a retaining ringr 6,' the purpose of which will presently appear. The lower disc 4 is provided with apertures 7, in axial alignment with the recesses The recesses 5 and the apertures 17 Areceive the shafts S in links,9,which links are disposed on the out sidesof discs 3 and 4. The, other ends of the lin'ks 9 are providednvith outwardly extending shafts 10, "which are re.d ceived in" the aperturesl .11 wif 4the arms 12, which areI horizontally dis- 'held spaced'from the discs 3 and 4 by'means of the-bosses y16' carried by the discs 3 and 4, which bosses extc'nd outwardly. The arms by a sleeve. rotatablyinounted on the shaft,--"'l2 are pivoted to the `discs 14 by means of amt/,forming meanslfor'steadyin'g a'nd brac-A ing. the,stone, carrying members and also' with the iii (we niioih''r" objects in View the invention resides in the combination and larrangement of part-s as hereinafter set forth, Shown in'tlie drawings. described and claimed, it being understood that changes in the precise embodiment of the invention may be made within the scope of What is claimed without departing; from the spirit of the invention.

In the drawingsz-u- Figure 1 is a side elevation of the grindn r device.

`igure 2 is a top elevation of the device showing the same disposed in a cylinder.-

Figrure 3 is a horizontal sectional view taken on line .fl-Bof Figure 1.

. Figure 4 is a sectional vicw through the upper end of the device` showing the same with the stone carrying members removcd.

Figurc 5 is a detail collective View of the parts of thc device ait one cnd of the dcvicc, showin; r the same in position for assembling.

Referringr to the drawings. the numeral l dcsigi'iates thel vertical shaft which is rotated in any suitable manner for revolving thc device as a wholel duringr a cylinder grinding operation. -Rotatably mounted on the shaft l is asleeve 2, which sleeve aft its the set screws 22.

inwardly extending cylindrical lugs 17, extending inwardly from the inner faces of ther` discs 14 and through the apertures 18 in'tlie arms 12, therefore it will be seen that the stone carryingr bars lfi may move in- `ardly and outwardly on their pivotal points formed by the cylindrical lugs 17 to accommodate the device to' different diameters of cylinders. ln use the device is rotated in thc direction of thc arrow i in Figure 2 and during the rot-ation the wall ofl the cylindcr l5 will he r rronnd bythe carborundum stones 24), which have a dove tail coiinm-tionZl with thc bars lil. and which arc hcld against displacement by means of Duringr the rotation of the dcvicc the bars i3 are forced outwardly by means of coiled springs 23, one cnd of which springs engages over lugs 24 carried by the bars 125 and the fit-her cnds engage over removable lugs 25 carricd by the sleeve 2, said springs beinplr positioned preferably centrally of the device and radially disposed sovthat thc maximum Acllicicncy may be ohtaincd as 'wcll as a compact structure. The springs exert an outward pressure upon the hars 13 and ii`nii'oriiily, thereby causing the carlmrunduin members Q0 to engage the wall oi' thc cylinder lf) with uniform pressureand consequently insuring' a uniform grinding of the cylinder. lly providing the retaining,r ring;0 (i. after the. lower end of the device is assembled, the upper end can be easily assembled `and the lugs 8 of the links 9 at the upper end of the device may be passed into the recesses 5, and then the retainingr ring 6 screwed-on the disc `3 for holding' said lugs against displacement.

lt will be seen that the spring 23 will I causo the device to accommodate itself to various sizes of cylinders and that when the bars 1Bmovev outwardly the links 9 )vill cause'the sleeve 2 -to rotate Slightly accordf ingrto the position of the bar, and not only C-bars 13. y 'y yF rom the above it will be seen that a` vbracingr the bar but moving the discs 3 and' 4,and consequently the sleeve 2 and the in-t ner ends ot' the springs 23 to points Where they will 'exert a uniformy pressure on the V`cylinder grinding device is provided, which is simple in construction,and one whichA maybe -ntilized for grinding cylinders of desire The invention having beenset forth what -1s claimed vas new and useful 1s`:o

1. A cylindergrinder comprising a shaft,

dises at the upper and lower ends of `tlief shaft, inwardly extending lugs carried by said discs, the .lugs of each dise being in 'axial alignment, a plurality of spaced grinding element 'carrying bars in parallel relation to the shaft, said bars having right angled arms pivoted to ythe axially aligned lugs of the discs, a sleeve rotatably mountyed on the shaft, the armsl of said barsexi `rtending beyond their pivotal.points, disc s Aposed springs and the sleeve.

signatu'lel carried by the sleeve,jlinkconnections between they ends of the arms-ofthe bars and the sleeve carried discs and radially dis-- p'osedvsprings interposed between the sleeve and the bars.

spaced discs carried adjacent the ends of the shattythe outer dises being keyed to the shaft, the inner dises being rotatably mounted on the shaft, the inner discsbeing connected together by a sleeve mounted on'the shaft,'grinder carrying bars in. parallel relation tothe shaft, inwardly extend. ingrar'lms carried-by the bars and plvoted in-l termediatetheir ends to the` outer discs, link connections between vthel inner 4ends of the arms and the"'inner dises, and radially disy interposed.: between the bars 3. `Acdinder,grinder comprising a shaft, spaced discs adjacent theends of saidshaft, spaced bars inv parallel relation to the shaft and-pivoteYl-'tothe outer diseymeans for se- 2.'"eylinder grinder comprising a shaft,

curing Agrindin'v' 'elements in the bars,y

'i arms ofthe barsandthe inner discs, one of said inner dises being provided with a: removable 'ring whereby the linksmay bevcon- -nected to the dises" and means whereby the innery dises will simultaneously rotate lon the-shaft to'accommodatethe"springs to various 'sizes of cylinders.

Isn testimony whereof I hereunto nx my Lfnaas* EDWAinj rowELL. 

